Draft or buffing rigging.



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RICHARD D. GALLAGHER, JR., OF NEW YORK, N. Y., ASSIGNOR TO STANDARDCOUPLER COMPANY, OF SAME PLACE.

DRAFT OR BUFFING RIGGING..

SPECIFICATION forming part of `Letters Patent No. 681,210, dated August27, 19021. i

` Original application iiled April 8, 1901, Serial No. 54,000. Dividedand this application filed Tuly 1, 1901. Serial No,l 66,727.

` (No model.) r

r T0 a/ZZ whom it mor/y concern:

`Be it known that LRICHARD D. GALLAGHER,

State of New York, have invented certain new and useful lmprovementsinDraft or Buffing Rigging; and I do hereby declare the i ;l following tobe a full, clear, and exact descrip- 1 tion of the same, reference beinghad to the accompanying drawings, forming a part of `this specication,and to the figures of reference marked thereon. y This invention relatesto improvements 1n r. `rigging designed to yield and take up strains iI5 of partsmoved by heavy pressure; and while the invention is welladapted for use in connection with heavy mechanism or mechanism 11quirementsof the draft-rigging for cars, and

` operating under heavy pressure, such as ordnance, wherein the recoilmust be checked, it is `particularly designedto answer the remoreespecially rigging of heavy rollingstock-as, forinstance, themodernsteel cars of large capacity.

`In its application to draft-rigging for cars 3 "the invention isdesigned to be capable of `ready application to cars of practically anytype and having either steel or wood drafti timbers or framing.

To this end one of the objects of the inveni tion is to provide astructure capable of bei ing readily substituted for draft-rigging onrolling-stock now in use or applied to rollingstock in course ofconstruction without cutting to any material extent the draft-timberswhen of wood or modifying the framing when 1 of metal.

A furtherobject of the invention is to provide a structure in which thesprings may be i arranged in theline of pressure and at the i 1 sametime their resistance so augmented and modified thatl springs ofordinary standard y size and power may, where desired, be util- "1 `izedfor the draft-rigging of rolling-stock of practically unlimited weightand without occasioning shock or oscillation of the cars in starting,stopping, or varying speed `and reprior application, Serial No. 54,900,filed April S, 1901, and is designed to cover that form of mechanismwherein the movement of the pressure-transmitting member in eitherdirection is converted into a reverse movement in compressing thespring, and whereby the structure may be adapted to compressv the springby opposite movements of its confining-abutments, the resistance of thespring being augmented by the resistance due to the friction and wedgingaction of the members intermediate the spring and pressure-transform tothe requirements of car-frames of any construction now in use or so asto be capable of application thereto without modification, but simply byvarying the mode of attachment. ln the presentinstance, as in the usualforms of draftrigging, the working parts of the apparatus are supportedand work between suitable supports-such, for instance, as thecheek-plates l, having suitable stops and guides 2 for the followers.The cheek-plates are simply a type of supporting mechanism, and it isobvious that any other or preferred type may be substituted. The spring3'is mounted between followers et, the latter being carried by thecheekplates and held by the stops 2 against outward movement, but arefree to move inwardly or toward each other and back to normal position.

Surrounding the followers and spring is a frame 5, corresponding to theordinary strap, onlypreferably heavier and stronger than plates are madeas nearly as possible to conthe usual strain-said frame being attachedat one endV to the draw-bar 6. The frame 5 constitutes part of thepressure-transmitting member, and between it and the followers amechanism is provided which will convert the movement of the frame inone direction to a reverse movement of the forward foladapted to bevdisplaced transversely by ineline 8 on the fra-me 5 and in turncooperates with the incl-ine 9 on the follower 4, whereby,

the follower is displaced li'neally and in direction opposite to thedirection of movement of the frame. The wedge block is guided in itstransverse movement by a cross or follower plate l0, held by thesupports or cheek-plates.

The mechanism is preferably du plica-ted at each end of the spring, theparts being reversely arranged, and in order that the de-I vice may bedouble-actin g in both directions,

so as to compress the spring from both ends,

the cross or follower plates are mounted between stops 11,- so as to becapable of an inward movement, whereby on movement of thep'ressure-transmitting member the rear `cross or follower plate willadvance and carry with 1 itas a body the wedge-block and follower,

while the other cross' or follower plate will remain stationary, and theincline on the frame, acting through the wedge-block and followervincline, will move the forward follower ba'ckt the followers havinginclines on their outer wardly against the tension of the spring.

Thev mechanism operates in like-manner in either direction, and it isobvious that by changing the ang-le of the incli-nes the resistance,d-ue to friction and wedging actionl ofthe parts, may be varied to suitthe conditions under which the apparatus is designed to work', and thusstandard springs may be employed for all classes of work, and whilewith/the structure shown the spring is adapted to be compressed fromboth ends it is obvious that the wedging devices alone may be utilizedfor each movement, thereby compressing the spring from one end only.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

l.` In an apparatus of the character specified, the combination of thefollowing instrumentalities, to wit; a pressure-transmitting member,anincline moving therewith,a wedgeblock adapted to be displacedtransversely by said incline, a follower cooperating with thewedge-block and adapted to be displaced thereby in a direction oppositeto the direction of movement of the pressure-transmitting member and aspring for resisting the movement'of the follower, as set forth.

2. In an apparatus of the character specified, the combination of thefollowing instrumentalities, to wit; a spring, a follower workingagainst said spring, an incline moving with said follower, atransversely-movable wedge-block cooperating with the incline todisplace the follower against the tension of thefspring, a transverseguide for the wedgeblock, a pressure-transmitting member movable in linewith the line of springcompression and an incline moved by thepressuretransmitting' member and cooperating with the wedge-block todisplace the same transversely; substantially as described.

8. In an apparatus of the character specified, the combination withfollowers,stops for holdingsaid followers against outward move-`-mentiwhile permitting them to move inwardly, `and a spring cond-nedbetween said followers, of an incline moving with one of said followers,a transversely-displaceablewedge-block cooperatingwith saidincline,a-pressure-transmitting member and an incline moving therewithand ycooperating with the wedge-block to displace the same transverselyagainst the tension of the spring exerted through the follower andincline moving therewith; substantially as described.v

4. In a draft-rigging the combination with 'the' 'followers havinginclines on their outer sides, a spring confined between the followersand transversely-movable wedge-blocks cooperating with said inclines, ofa press-uretransmitting member, inclines moving therewith andcooperating with the wedge-blocks, and guides with which thewedge-blocks cooperate in their transverse movement; substantially asdescribed.

5. In a draft-rigging, the combination with sides, a spring confinedbetween the followers, and transversely-movable wedge-blocks cooperatingwith said inclines, of a pressuretransmitting member, inclines movingtherewith and cooperating with the wedge-blocks and guides formed byinwardly-'movable crossplates with which the Iwedge-'blocks cooperate intheir transverse movement; substantially as described.

6. In a draft-rigging, the combinati-on with the spring, thelongitudinally-movable follower against which the spring abuts, anincline on said follower, and a pressure-transmitting member movablelongitudinally-or in the direction of movement of the follower andhaving an incline at an angle to the incline on the follower, of atransversely-movable wedge-block interposed between said inclineswhercbythe longitudinal movement of said pressure-transmitting member orfollower will impart an opposite movement to the other member;substantially as described.

7. In a draft-rigging, the combination with the oppositely-locatedfollowers, the springinterposed between said followers, and the inwiththe wedge-blocks; substantially as described.

I RICHARD D. GALLAGHER, JR.

Witnesses:

A. W. TAYLOR, L. F. MCGARITY.

